body{
	background: #f2f2f2;
}
.main{
	width: 1200px;
	margin: 20px auto;
}
.main .main-title{
	height: 68px;
	background: #fff;
	font-size: 17px;
	line-height: 68px;
	border-radius: 4px;
}
.main .main-title>div{
	float: left;
	margin-left: 20px;
}
.main .main-title>div.active{
	color: #2984cb;
}
.main .main-content{
	background: #fff;
	margin-top: 10px;
	padding: 20px 16px;
	border-radius: 4px;
}
.main .main-content .problem{
	overflow: auto;
	font-size: 12px;
}
.main .main-content .problem .problem-title{
	overflow: auto;
}
.main .main-content .problem .problem-title .problem-icon{
	color: #fff;
	background: #2b82c5;
	border-radius: 3px;
	padding: 3px 5px;
	float: left;
}	
.main .main-content .problem .problem-title .problem-text{
	float: left;
	margin-left: 18px;
}
.main .main-content .problem .problem-title .problem-time{
	float: right;
	color: #676767;
}
.main .main-content .problem .text{
	margin-top: 30px;
	position: relative;
}
.main .main-content .problem .text textarea{
	width: 100%;
	height: 720px;
	border-radius: 6px;
	outline: none;
	padding: 18px 12px;
	border: 1px solid #d9d9d9;
	resize: none;
}
.main .main-content .problem .text::before{
	content: "";
	display: block;
	width: 30px;
	height: 30px;
	border: 1px solid #d9d9d9;
	border-color:  #d9d9d9 transparent transparent #d9d9d9; 
	background: #fff;
	position: absolute;
	top: -15px;
	left: 78px;
	transform: rotate(45deg);
	z-index: 999;
}
.main .main-content .problem .submit{
	margin-top: 40px;
	float: right;
	height: 40px;
}
.main .main-content .problem .submit button{
	width: 200px;
	height: 40px;
	border-radius: 4px;
	color: #fff;
	border: none;
	background: #2883c9;
	margin-left: 40px;
}
/* 回答问题区域 */
.content-list{
	margin-top: 10px;
}
.content-list .problem{
	margin-bottom: 20px;
}
.content-list .list{
	font-size: 14px;
}
.content-list .list .item{
	display: block;
	border-top: 1px solid #dfdfdf;
	color: #000;
	padding-top: 20px;
	padding-bottom: 20px;
	margin-bottom: 20px;
}
.content-list .list .item .left{
	float: left;
}
.content-list .list .right{
	float: right;
	color: #666666;
}
